Jonathan full



JONATHANNULL, OF QUI'NGY, PENNSYLVANIA.

LeemPam'Nb; 75,785, ma Marat 24,' 186s.'

IMPROVEMENT IN WOOD-BORING MACHINES.

` tlilgt Simula termen it in lges @litters @mutant making gmt nf thesame.

TO WHOM IT MAY CONCERN;

Be it known that I, JONATHAN NULL, of Quincy,in the county ofvIlrantlyilin, a'nd State of Pennsylvania, have invented a. new anduseful VImprovelznent in Machines for BoringlPostsf'and I do herebydeclare that the following is a.A full and exact description thereof,reference being had tothe accompanying drawings, and to the letters ofreference ma-rked'ithereon. 'I v My invention consistsin a novelarrangement'of frames and other devices for holding` a. post for boring,and also in moving they post conveniently iu relation to the anger. Inthe accompanying drawings- Figure-1 is a top view ofmy machine. v i

Figure 2 is af side view of the saine; and

. Figure 3 is an end view. A

In the construction of my machine, a, suitable frame, A, is made, andthe auger B arranged thereon, as seen inV figs. 1 and 3. The augerlrnayhave a'crank, C, foiworking byy hand, and also a pulley, D, for a hand,and the use of power. It is also providedwith a balance-wheel, E. Uponthe mainframe A is arranged another frame, F, which has a. lateralmotion, by means of a shaft, G, carrying two cog-whecls H, working inratchet-bars, and u. crank, I. This shaft is also` provided with ahalf-wheel, K, and a weight, L, which serves to press the frame F towardthe auger while boring,'and thusv give proper feed. A third frame, M,is`placed upon the frame F, and' provided with a sliding motion, tocarry the post forward from hole to hole in boring. This frame may befixed by means of a set-spring or hook, N, figfl, which catches in theholes S, in frame M.

- The post is held in place uponthe frame M bymeansof set-screws O,which are worked by cranks Ou The.

frames are held together by-suitable guide-rods I and hooks R.

I do not confine my invention to the precise `details above described,but propose to v'arythe same as prac-- tical experience demands, so longas the machine issubstantially the same.`

I am aware that post-boring'niachines have been constructed, andtherefore limit my claims to the abovedescribed improvements.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent of the United States, isv The frame F, moved bythe shaft G-,cogwheels H, crank I, wheel K, and weight L, and themovable frame .M, controlled bythe spring N, when constructed andarranged to operate substantially in lthe manner and for the purposes asset forth. Y

JONATHAN NULL.

Witnesses:

Geenen W. KEAGEY,

F. A. C'oox.

